op {
  name: "For"
  input_arg {
    name: "start"
    type: DT_INT32
  }
  input_arg {
    name: "limit"
    type: DT_INT32
  }
  input_arg {
    name: "delta"
    type: DT_INT32
  }
  input_arg {
    name: "input"
    type_list_attr: "T"
  }
  output_arg {
    name: "output"
    type_list_attr: "T"
  }
  attr {
    name: "T"
    type: "list(type)"
    has_minimum: true
  }
  attr {
    name: "body"
    type: "func"
  }
}
